I really don't know how the speech emulators work and how text is browsed. Also I'm not blind. But can you browse a block of text more freely than left to right, and line by line?

Because you could just go with the text map with a letter (for terrain type) and number (for elevation). ie:

G1G1G1G1G1G2G2R2G2G3F3F3
G1G1G1G1G1G2G2R2G2G3F3F3
G1G1G2G1G1G2G2R2G2G3F3F3
G1G2G2G1G1G1H1R1G2G2F2F3
G1G1G1G1G1G1G1R1G2G2F2F2

Or the something similar. Not being able to print it out means the tactile bit isn't an option at all.

* (G being grassland, F being forest, R being a road and H being a house)